Whether to contain titanium alloy elements can be divided into pure titanium and titanium alloy, and titanium alloy according to its composition and organization of different can be divided into the alpha titanium alloy at room temperature and close alpha type alloy, (alpha + beta) type alloy type, close beta alloy and beta type alloy. Titanium and titanium alloys can be used to prepare silk materials with different requirements according to different properties. Titanium and titanium alloy wire products are generally hard (Y) and annealing (M).
Titanium and titanium alloy with good corrosion resistance, higher than strength, nonmagnetic, high biocompatibility, on the impedance of the ultrasonic wave is small, high coefficient of acoustic, hydrogen storage and good shape memory function and a series of excellent characteristics of has important use value, thus in aerospace, petrochemical industry, medical, automotive, construction, and sports leisure products produced important use, and many other fields. Moreover, in recent years, due to its continuous development and diversified varieties, it has provided more choices in high-performance industrial supplies and consumer goods applications. The application status of titanium and titanium alloy wire is introduced in the following aspects.
1983 titanium revised into a uniform national standards, simply cancel the standard, in the name of the titanium wire and formulated the GB3623-83 standard for titanium and titanium alloy wire and standard accord with GB3620-83 "the chemical composition of wire (titanium and titanium alloy grades and chemical composition), the provisions of the", namely chemical composition completely and other deformation of titanium and titanium alloy materials. As stated in titanium and titanium alloy wire, "this standard is applicable to titanium and titanium alloy circular wire for corrosion resistant parts, electrode materials and welding materials." That is, it is expressly stipulated that the ordinary structural wire shall be used as titanium welding wire.
According to the standard of titanium material, the titanium material produced in China has basically reached the advanced level of foreign titanium material no matter in chemical composition or mechanical properties. However, there is no real standard and product of titanium welding wire. The titanium structural part wire is used as the welding wire, which makes our country's titanium welding wire at the lowest level in the world. Titanium wire use only about 2% of the dosage of titanium, is that 2% of low quality of titanium wire reduce the reserves of plasticity titanium pressure vessel, greatly lower the quality level of our country's titanium pressure vessel. For users of titanium pressure vessel, the investment cost of titanium pressure vessel, after all, is very high, the low quality of titanium wire will not save the cost of an investment, and has got the low quality of titanium pressure vessel, should say, is very not worthwhile economically.
